b5a575b092
Type: docs Change-Id: I9b5e5137eb4c1e89f6e8d7a278cd11a0fd496471 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
121 lines
2.7 KiB
C
121 lines
2.7 KiB
C
/*
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* Copyright (c) 2019 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* A L3 cross connect will send all traffic that is received on the input
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* interface to the [set of] paths requested.
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* It is a much more memory efficient solution than using a separate IP table
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* for each input interface and much faster than an ABF match all rule.
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*/
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#ifndef __L3XC_H__
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#define __L3XC_H__
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#include <vnet/fib/fib_node.h>
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#define L3XC_PLUGIN_VERSION_MAJOR 1
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#define L3XC_PLUGIN_VERSION_MINOR 0
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/**
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*/
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typedef struct l3xc_t_
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{
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CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
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/**
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* Linkage into the FIB graph
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*/
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fib_node_t l3xc_node;
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/**
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* The path-list describing how to forward in case of a match
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*/
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fib_node_index_t l3xc_pl;
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fib_protocol_t l3xc_proto;
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/**
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* Sibling index on the path-list
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*/
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u32 l3xc_sibling;
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/**
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* The input interface
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*/
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u32 l3xc_sw_if_index;
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/**
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* DPO for forwarding
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*/
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dpo_id_t l3xc_dpo;
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} l3xc_t;
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/**
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* Create or update an L3XC Policy
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*
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* @param sw_if_index the input interface
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* @param is_ipv6 - 0 if ip4, 1 if ip6
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* @param rpaths The set of paths to add to the forwarding set
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* @return error code
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*/
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extern int l3xc_update (u32 sw_if_index,
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u8 is_ip6, const fib_route_path_t * rpaths);
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/**
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* Delete an L3XC.
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*
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* @param sw_if_index the input interface
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* @param is_ipv6 - 0 if ip4, 1 if ip6
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*/
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extern int l3xc_delete (u32 sw_if_index, u8 is_ip6);
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/**
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* Callback function invoked during a walk of all policies
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*/
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typedef int (*l3xc_walk_cb_t) (index_t l3xci, void *ctx);
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/**
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* Walk/visit each of the L3XC policies
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*/
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extern void l3xc_walk (l3xc_walk_cb_t cb, void *ctx);
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/**
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* Find a L3 XC object from an interface and FIB protocol
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*/
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extern index_t l3xc_find (u32 sw_if_index, fib_protocol_t fproto);
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/**
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* Data-plane functions
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*/
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extern l3xc_t *l3xc_pool;
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static_always_inline l3xc_t *
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l3xc_get (u32 index)
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{
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return (pool_elt_at_index (l3xc_pool, index));
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}
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extern vlib_node_registration_t l3xc_ip4_node;
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extern vlib_node_registration_t l3xc_ip6_node;
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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#endif
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